Push-pull transducers have a near perfect, omni-directional radiation of sound waves, which provides distinct advantages in cleaning applications.
This is accomplished by resonating the transducer at a very high wave amplitude. Transducers inside each end cap on the titanium push-pull rod produce cyclic positive and negative pressure waves at the frequency of operation (25kHz, 30kHz, or 40kHz). The positive pressure wave acts as a pushing force on the titanium rod and the negative pressure wave acts as a pulling force (hence “Push-Pull”).
What is ultrasonic cleaning?
The sound waves generated at high and low pressure phases in a liquid will create microscopic vacuum bubbles that implode when the sound waves move and the zones changes from +ve to -ve pressure.
This process is called “cavitation.”
During low pressure phase, the liquid molecules extend beyond their natural physical force, generating vacuum nuclei that continue to grow to a maximum size proportional to the applied sonic frequency. Then at the high pressure phase of the next half cycle, the vacuum bubble implodes—thus inducing all the energy to focus inward.
The energy released from the cavitation implosion collides with or disintegrates the contaminants. This in turn allows the cleaning detergent and/or solvent to displace it very quickly. This implosion also simultaneously creates dynamic pressure to carry away contaminants from the substrate surface.
An unmatched method for safe, precision cleaning.
Enormous localized pressures and temperatures are exerted during cavitation, which loosens the contaminants and “scrubs” the equipment parts microscopically clean.
Since the action takes places microscopically within a liquid environment, it reaches into every possible nook and cranny of any structural shape while maintaining virtually equal power and effectiveness throughout the inner and outer surface areas.
And because ultrasonic cleaning requires a tank container to hold its liquid bath, cleaning solutions and waste are perfectly contained and easily disposed of (waste) or recycled for re-use (solutions).
A highly beneficial outcome of submerged cavitation cleaning is that the old-fashioned need for forced sprays is eliminated—important when you consider that jet-force sprays can maim or even decapitate workers.
The abilities to power away contaminants outside and inside any structure or shape, to contain/recycle all waste/chemicals, and to avoid the common dangers associated with power sprays is simply an unmatchably advantageous cleaning method, far beyond the capabilities of power washing, powder blasting, manual scrubbing, and the like.